At `25^(@)C`, number of `OH^(-)` ions in water is `10^(-x)N_(A)`. `x` can be

A buffer solution is made up of acetic acid [pK_(a)=5] having conc.=1.5M and sodium acetate having conc.=0.15 M. What is the number OH^(-) ions present in 1 litre solution? a. 10^(-10) N_(A) b. 10^(-4) N_(A) c. 10^(-3) N_(A) d. 10^(-6) N_(A)

The number of solutions of the equation 5^x+5^-x=log_(10) 25, x in R is

At 25^(@)C , the solubility product of Mg(OH)_(2) is 1.0xx10^(-11) . At which pH , will Mg^(2+) ions start precipitating in the form of Mg(OH)_(2) from a solution of 0.001 M Mg^(2+) ions ?

The no.of H_(3)O^(+) ions present in 10 ml of water at 25^(@) C is

The ionization constant of overset(o+)(NH_(4)) ion in water is 5.6 xx 10^(-10) at 25^(@)C . The rate constant the reaction of overset(o+)NH_(4) and overset(ɵ)(OH) ion to form NH_(3) and H_(2)O at 25^(@)C is 3.4 xx 10^(10)L mol^(-1) s^(-1) . Calculate the rate constant for proton transfer from water to NH_(3) .

If an aqueous solution at 25^(@)C has twice as many OH^(-) as pure water its pOH will be

The K_(sp) for X_(2) SO_(4) at 25^(@) (X^(+) is a monovalent ion) is 3.2 xx 10^(-5) The maximum concentration of X^(+) that could be attained in a saturated solution of this solid at 25^@C is

The number of terms in the expansion of (1-10x+25x^(2))^(20) is

If the number of terms in the expansion of (1+x)^(101)(1+x^(2)-x)^(100) is n, then the value of (n)/(25) is euqal to

K_(sp) of M(OH)_(x) , is 27 xx 10^(-12) and its solubility in water is 10^(-3) mol litre^(-1) . Find the value of X